I would personally have my own bedroom. You spend much more time in your bedroom than you would a bathroom. When I have time to myself, I'd want to be comfortable and have space all to my own. With a bedroom, you have a bunch of space and a cozy bed and all your stuff in it. You can just chill by yourself. With a bathroom, it's usually a much smaller space, and you don't really have any comfy furniture there. Also, I could lay on my floor in the bedroom, but laying on the floor in the bathroom wouldn't be ideal. Bathrooms to yourself are nice, but your own living space is better.